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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.209 by root, Sun Apr 1 17:46:02 2012 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC

…		…
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
22	#endif	36	#endif
23		37
24	/* perl namespace pollution */	38	/* perl namespace pollution */
25	#undef VERSION	39	#undef VERSION
26		40
…		…
77		91
78	#define EIO_STRUCT_STAT Stat_t	92	#define EIO_STRUCT_STAT Stat_t
79		93
80	#endif	94	#endif
81		95
82	/* use NV for 32 bit perls as it allows larger offsets */
83	#if IVSIZE >= 8
84	# define VAL64 IV
85	# define SvVAL64 SvIV
86	# define newSVval64 newSViv
87	#else
88	# define VAL64 NV
89	# define SvVAL64 SvNV
90	# define newSVval64 newSVnv
91	#endif
92
93	/*****************************************************************************/	96	/*****************************************************************************/
94		97
95	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
96	# define expect(expr,value) __builtin_expect ((expr),(value))	99	# define expect(expr,value) __builtin_expect ((expr),(value))
97	#else	100	#else
…		…
100		103
101	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
102	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
103		106
104	/*****************************************************************************/	107	/*****************************************************************************/
		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_RLIMITS
		116	#include <sys/time.h>
		117	#include <sys/resource.h>
		118	#endif
105		119
106	typedef SV SV8; /* byte-sv, used for argument-checking */	120	typedef SV SV8; /* byte-sv, used for argument-checking */
107	typedef int aio_rfd; /* read file desriptor */	121	typedef int aio_rfd; /* read file desriptor */
108	typedef int aio_wfd; /* write file descriptor */	122	typedef int aio_wfd; /* write file descriptor */
109		123
…		…
116	STRLEN stroffset; \	130	STRLEN stroffset; \
117	SV *self;	131	SV *self;
118		132
119	#define EIO_NO_WRAPPERS 1	133	#define EIO_NO_WRAPPERS 1
120		134
121	#include "libeio/config.h"
122	#include "libeio/eio.h"	135	#include "libeio/eio.h"
123		136
124	static int req_invoke (eio_req *req);	137	static int req_invoke (eio_req *req);
125	#define EIO_FINISH(req) req_invoke (req)	138	#define EIO_FINISH(req) req_invoke (req)
126	static void req_destroy (eio_req *grp);	139	static void req_destroy (eio_req *grp);
127	#define EIO_DESTROY(req) req_destroy (req)	140	#define EIO_DESTROY(req) req_destroy (req)
128		141
129	#include "libeio/eio.c"	142	#include "libeio/eio.c"
130		143
131	/* Linux/others */
132	#ifndef O_ASYNC
133	# define O_ASYNC 0
134	#endif
135	#ifndef O_DIRECT
136	# define O_DIRECT 0
137	#endif
138	#ifndef O_NOATIME
139	# define O_NOATIME 0
140	#endif
141
142	/* POSIX */
143	#ifndef O_CLOEXEC
144	# define O_CLOEXEC 0
145	#endif
146	#ifndef O_NOFOLLOW
147	# define O_NOFOLLOW 0
148	#endif
149	#ifndef O_NOCTTY
150	# define O_NOCTTY 0
151	#endif
152	#ifndef O_NONBLOCK
153	# define O_NONBLOCK 0
154	#endif
155	#ifndef O_EXEC
156	# define O_EXEC 0
157	#endif
158	#ifndef O_SEARCH
159	# define O_SEARCH 0
160	#endif
161	#ifndef O_DIRECTORY
162	# define O_DIRECTORY 0
163	#endif
164	#ifndef O_DSYNC
165	# define O_DSYNC 0
166	#endif
167	#ifndef O_RSYNC
168	# define O_RSYNC 0
169	#endif
170	#ifndef O_SYNC
171	# define O_SYNC 0
172	#endif
173	#ifndef O_TTY_INIT
174	# define O_TTY_INIT 0
175	#endif
176
177	#ifndef POSIX_FADV_NORMAL
178	# define POSIX_FADV_NORMAL 0
179	#endif
180	#ifndef POSIX_FADV_SEQUENTIAL
181	# define POSIX_FADV_SEQUENTIAL 0
182	#endif
183	#ifndef POSIX_FADV_RANDOM
184	# define POSIX_FADV_RANDOM 0
185	#endif
186	#ifndef POSIX_FADV_NOREUSE
187	# define POSIX_FADV_NOREUSE 0
188	#endif
189	#ifndef POSIX_FADV_WILLNEED
190	# define POSIX_FADV_WILLNEED 0
191	#endif
192	#ifndef POSIX_FADV_DONTNEED
193	# define POSIX_FADV_DONTNEED 0
194	#endif
195
196	#if !HAVE_POSIX_FADVISE	144	#if !HAVE_POSIX_FADVISE
197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	145	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198	#endif	146	#endif
199		147
200	#ifndef POSIX_MADV_NORMAL
201	# define POSIX_MADV_NORMAL 0
202	#endif
203	#ifndef POSIX_MADV_SEQUENTIAL
204	# define POSIX_MADV_SEQUENTIAL 0
205	#endif
206	#ifndef POSIX_MADV_RANDOM
207	# define POSIX_MADV_RANDOM 0
208	#endif
209	#ifndef POSIX_MADV_WILLNEED
210	# define POSIX_MADV_WILLNEED 0
211	#endif
212	#ifndef POSIX_MADV_DONTNEED
213	# define POSIX_MADV_DONTNEED 0
214	#endif
215
216	#if !HAVE_POSIX_MADVISE	148	#if !HAVE_POSIX_MADVISE
217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	149	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
218	#endif
219
220	#ifndef PROT_NONE
221	# define PROT_NONE 0
222	#endif
223	#ifndef PROT_READ
224	# define PROT_READ 0
225	#endif
226	#ifndef PROT_WRITE
227	# define PROT_READ 0
228	#endif
229	#ifndef PROT_EXEC
230	# define PROT_EXEC 0
231	#endif
232
233	#ifndef ST_RDONLY
234	# define ST_RDONLY 0
235	#endif
236	#ifndef ST_NOSUID
237	# define ST_NOSUID 0
238	#endif
239	#ifndef ST_NODEV
240	# define ST_NODEV 0
241	#endif
242	#ifndef ST_NOEXEC
243	# define ST_NOEXEC 0
244	#endif
245	#ifndef ST_SYNCHRONOUS
246	# define ST_SYNCHRONOUS 0
247	#endif
248	#ifndef ST_MANDLOCK
249	# define ST_MANDLOCK 0
250	#endif
251	#ifndef ST_WRITE
252	# define ST_WRITE 0
253	#endif
254	#ifndef ST_APPEND
255	# define ST_APPEND 0
256	#endif
257	#ifndef ST_IMMUTABLE
258	# define ST_IMMUTABLE 0
259	#endif
260	#ifndef ST_NOATIME
261	# define ST_NOATIME 0
262	#endif
263	#ifndef ST_NODIRATIME
264	# define ST_NODIRATIME 0
265	#endif
266	#ifndef ST_RELATIME
267	# define ST_RELATIME 0
268	#endif
269
270	#ifndef S_IFIFO
271	# define S_IFIFO 0
272	#endif
273	#ifndef S_IFCHR
274	# define S_IFCHR 0
275	#endif
276	#ifndef S_IFBLK
277	# define S_IFBLK 0
278	#endif
279	#ifndef S_IFLNK
280	# define S_IFLNK 0
281	#endif
282	#ifndef S_IFREG
283	# define S_IFREG 0
284	#endif
285	#ifndef S_IFDIR
286	# define S_IFDIR 0
287	#endif
288	#ifndef S_IFWHT
289	# define S_IFWHT 0
290	#endif
291	#ifndef S_IFSOCK
292	# define S_IFSOCK 0
293	#endif	150	#endif
294		151
295	#ifndef MAP_ANONYMOUS	152	#ifndef MAP_ANONYMOUS
296	# ifdef MAP_ANON	153	# ifdef MAP_ANON
297	# define MAP_ANONYMOUS MAP_ANON	154	# define MAP_ANONYMOUS MAP_ANON
298	# else	155	# else
299	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	156	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
300	# endif	157	# endif
301	#endif	158	#endif
302	#ifndef MAP_HUGETLB	159
303	# define MAP_HUGETLB 0	160	/* defines all sorts of constants to 0 unless they are already defined */
304	#endif	161	/* also provides const_iv_ and const_niv_ macros for them */
305	#ifndef MAP_LOCKED	162	#include "def0.h"
306	# define MAP_LOCKED 0
307	#endif
308	#ifndef MAP_NORESERVE
309	# define MAP_NORESERVE 0
310	#endif
311	#ifndef MAP_POPULATE
312	# define MAP_POPULATE 0
313	#endif
314	#ifndef MAP_NONBLOCK
315	# define MAP_NONBLOCK 0
316	#endif
317		163
318	#ifndef makedev	164	#ifndef makedev
319	# define makedev(maj,min) (((maj) << 8) | (min))	165	# define makedev(maj,min) (((maj) << 8) | (min))
320	#endif	166	#endif
321	#ifndef major	167	#ifndef major
…		…
323	#endif	169	#endif
324	#ifndef minor	170	#ifndef minor
325	# define minor(dev) ((dev) & 0xff)	171	# define minor(dev) ((dev) & 0xff)
326	#endif	172	#endif
327		173
328	#ifndef PAGESIZE	174	#if PAGESIZE <= 0
329	# define PAGESIZE sysconf (_SC_PAGESIZE)	175	# define PAGESIZE sysconf (_SC_PAGESIZE)
330	#endif	176	#endif
		177
		178	/*****************************************************************************/
		179
		180	#if !_POSIX_MAPPED_FILES
		181	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		182	# define munmap(addr,length) EIO_ENOSYS ()
		183	#endif
		184
		185	#if !_POSIX_MEMORY_PROTECTION
		186	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		187	#endif
		188
		189	#define FOREIGN_MAGIC PERL_MAGIC_ext
		190
		191	static int ecb_cold
		192	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		193	{
		194	int old_errno = errno;
		195	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		196	errno = old_errno;
		197
		198	mg->mg_obj = 0; /* just in case */
		199
		200	SvREADONLY_off (sv);
		201
		202	if (SvPVX (sv) != mg->mg_ptr)
		203	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		204
		205	SvCUR_set (sv, 0);
		206	SvPVX (sv) = 0;
		207	SvOK_off (sv);
		208
		209	return 0;
		210	}
		211
		212	static MGVTBL mmap_vtbl = {
		213	0, 0, 0, 0, mmap_free
		214	};
		215
		216	static int ecb_cold
		217	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		218	{
		219	free (mg->mg_ptr);
		220	mg->mg_obj = 0; /* just in case */
		221
		222	SvREADONLY_off (sv);
		223
		224	if (SvPVX (sv) != mg->mg_ptr)
		225	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		226
		227	SvCUR_set (sv, 0);
		228	SvPVX (sv) = 0;
		229	SvOK_off (sv);
		230
		231	return 0;
		232	}
		233
		234	static MGVTBL sysfree_vtbl = {
		235	0, 0, 0, 0, sysfree_free
		236	};
		237
		238	/*****************************************************************************/
		239
		240	/* helper: set scalar to foreign ptr with custom free */
		241	static void
		242	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		243	{
		244	sv_force_normal (sv);
		245
		246	/* we store the length in mg_obj, as namlen is I32 :/ */
		247	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		248	->mg_obj = (SV *)length;
		249
		250	SvUPGRADE (sv, SVt_PV); /* nop... */
		251
		252	if (SvLEN (sv))
		253	Safefree (SvPVX (sv));
		254
		255	SvPVX (sv) = (char *)addr;
		256	SvCUR_set (sv, length);
		257	SvLEN_set (sv, 0);
		258	SvPOK_only (sv);
		259	}
		260
		261	static void
		262	sv_clear_foreign (SV *sv)
		263	{
		264	/* todo: iterate over magic and only free ours, but of course */
		265	/* the perl5porters will call that (correct) behaviour buggy */
		266	sv_unmagic (sv, FOREIGN_MAGIC);
		267	}
		268
		269	/*****************************************************************************/
		270
		271	static void
		272	fiemap (eio_req *req)
		273	{
		274	req->result = -1;
		275
		276	#if HAVE_FIEMAP
		277	/* assume some c99 */
		278	struct fiemap *fiemap = 0;
		279	size_t end_offset;
		280	int count = req->int3;
		281
		282	req->flags |= EIO_FLAG_PTR1_FREE;
		283
		284	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		285	/* increase in 3.5kb steps */
		286	if (count < 0)
		287	count = 8;
		288
		289	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		290	errno = ENOMEM;
		291	if (!fiemap)
		292	return;
		293
		294	req->ptr1 = fiemap;
		295
		296	fiemap->fm_start = req->offs;
		297	fiemap->fm_length = req->size;
		298	fiemap->fm_flags = req->int2;
		299	fiemap->fm_extent_count = count;
		300
		301	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		302	return;
		303
		304	if (req->int3 >= 0 /* not autosizing */
		305	|| !fiemap->fm_mapped_extents /* no more extents */
		306	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		307	goto done;
		308
		309	/* else we have to loop -
		310	* it would be tempting (actually I tried that first) to just query the
		311	* number of extents needed, but linux often feels like not returning all
		312	* extents, without telling us it left any out. this complicates
		313	* this quite a bit.
		314	*/
		315
		316	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		317
		318	for (;;)
		319	{
		320	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		321	char scratch[3072];
		322	struct fiemap *incmap = (struct fiemap *)scratch;
		323
		324	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		325	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		326	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		327	incmap->fm_flags = fiemap->fm_flags;
		328	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		329
		330	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		331	return;
		332
		333	if (!incmap->fm_mapped_extents)
		334	goto done;
		335
		336	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		337	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		338	errno = ENOMEM;
		339	if (!fiemap)
		340	return;
		341
		342	req->ptr1 = fiemap;
		343
		344	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		345	{
		346	struct fiemap_extent *e = incmap->fm_extents + count;
		347
		348	if (e->fe_logical + e->fe_length >= end_offset)
		349	goto done;
		350
		351	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		352
		353	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		354	goto done;
		355
		356	}
		357	}
		358
		359	done:
		360	req->result = 0;
		361
		362	#else
		363	errno = ENOSYS;
		364	#endif
		365	}
		366
		367	/*****************************************************************************/
331		368
332	enum {	369	enum {
333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	370	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
334	};	371	};
335		372
…		…
374	}	411	}
375		412
376	static SV *	413	static SV *
377	newSVaio_wd (aio_wd wd)	414	newSVaio_wd (aio_wd wd)
378	{	415	{
379	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	416	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
380	}	417	}
381		418
382	static aio_req	419	static aio_req
383	SvAIO_REQ (SV *sv)	420	SvAIO_REQ (SV *sv)
384	{	421	{
…		…
403	|| SvTYPE (SvRV (sv)) != SVt_PVMG	440	|| SvTYPE (SvRV (sv)) != SVt_PVMG
404	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	441	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
405	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	442	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
406		443
407	return (aio_wd)(long)SvIVX (SvRV (sv));	444	return (aio_wd)(long)SvIVX (SvRV (sv));
		445	}
		446
		447	static SV *
		448	newmortalFH (int fd, int flags)
		449	{
		450	if (fd < 0)
		451	return &PL_sv_undef;
		452
		453	GV *gv = (GV *)sv_newmortal ();
		454	char sym[64];
		455	int symlen;
		456
		457	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		458	gv_init (gv, aio_stash, sym, symlen, 0);
		459
		460	symlen = snprintf (
		461	sym,
		462	sizeof (sym),
		463	"%s&=%d",
		464	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		465	fd
		466	);
		467
		468	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		469	? (SV *)gv : &PL_sv_undef;
408	}	470	}
409		471
410	static void	472	static void
411	aio_grp_feed (aio_req grp)	473	aio_grp_feed (aio_req grp)
412	{	474	{
…		…
540	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	602	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
541	}	603	}
542	break;	604	break;
543		605
544	case EIO_OPEN:	606	case EIO_OPEN:
545	{	607	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
546	/* convert fd to fh */
547	SV *fh = &PL_sv_undef;
548
549	if (req->result >= 0)
550	{
551	GV *gv = (GV *)sv_newmortal ();
552	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
553	char sym [64];
554	int symlen;
555
556	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
557	gv_init (gv, aio_stash, sym, symlen, 0);
558
559	symlen = snprintf (
560	sym,
561	sizeof (sym),
562	"%s&=%d",
563	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564	(int)req->result
565	);
566
567	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
568	fh = (SV *)gv;
569	}
570
571	PUSHs (fh);
572	}
573	break;	608	break;
574		609
575	case EIO_STATVFS:	610	case EIO_STATVFS:
576	case EIO_FSTATVFS:	611	case EIO_FSTATVFS:
577	{	612	{
…		…
580	#ifndef _WIN32	615	#ifndef _WIN32
581	if (req->result >= 0)	616	if (req->result >= 0)
582	{	617	{
583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	618	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
584	HV *hv = newHV ();	619	HV *hv = newHV ();
		620	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		621	* chooses to make it a struct.
		622	*/
		623	unsigned long fsid = 0;
		624	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
585		625
586	rv = sv_2mortal (newRV_noinc ((SV *)hv));	626	rv = sv_2mortal (newRV_noinc ((SV *)hv));
587		627
588	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	628	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
589	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	629	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
591	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	631	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
592	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	632	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
593	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	633	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
594	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	634	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
595	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	635	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
596	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	636	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
597	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	637	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
598	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	638	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
599	}	639	}
600	#endif	640	#endif
601		641
…		…
652	SvSETMAGIC (req->sv2);	692	SvSETMAGIC (req->sv2);
653	PUSHs (sv_result);	693	PUSHs (sv_result);
654	}	694	}
655	break;	695	break;
656		696
		697	case EIO_SLURP:
		698	{
		699	if (req->result >= 0)
		700	{
		701	/* if length was originally not known, we steal the malloc'ed memory */
		702	if (req->flags & EIO_FLAG_PTR2_FREE)
		703	{
		704	req->flags &= ~EIO_FLAG_PTR2_FREE;
		705	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		706	}
		707	else
		708	{
		709	SvCUR_set (req->sv2, req->result);
		710	*SvEND (req->sv2) = 0;
		711	SvPOK_only (req->sv2);
		712	}
		713
		714	SvSETMAGIC (req->sv2);
		715	}
		716
		717	PUSHs (sv_result);
		718	}
		719	break;
		720
		721	case EIO_CUSTOM:
		722	if (req->feed == fiemap)
		723	{
		724	#if HAVE_FIEMAP
		725	if (!req->result)
		726	{
		727	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		728
		729	if (fiemap->fm_extent_count)
		730	{
		731	AV *av = newAV ();
		732	int i;
		733
		734	while (fiemap->fm_mapped_extents)
		735	{
		736	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		737	AV *ext_av = newAV ();
		738
		739	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		740	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		741	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		742	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		743
		744	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		745	}
		746
		747	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		748	}
		749	else
		750	{
		751	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		752	PUSHs (sv_result);
		753	}
		754	}
		755	#endif
		756	}
		757	else
		758	PUSHs (sv_result);
		759	break;
		760
657	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	761	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
658	if (req->result > 0)	762	if (req->result > 0)
659	SvIV_set (sv_result, 0);	763	SvIV_set (sv_result, 0);
660	/* FALLTHROUGH */	764	/* FALLTHROUGH */
661		765
…		…
726	{	830	{
727	while (eio_nreqs ())	831	while (eio_nreqs ())
728	{	832	{
729	int size;	833	int size;
730		834
731	X_LOCK (reslock);	835	X_LOCK (EIO_POOL->reslock);
732	size = res_queue.size;	836	size = EIO_POOL->res_queue.size;
733	X_UNLOCK (reslock);	837	X_UNLOCK (EIO_POOL->reslock);
734		838
735	if (size)	839	if (size)
736	return;	840	return;
737		841
738	etp_maybe_start_thread ();	842	etp_maybe_start_thread (EIO_POOL);
739		843
740	s_epipe_wait (&respipe);	844	s_epipe_wait (&respipe);
741	}	845	}
742	}	846	}
743		847
…		…
764	create_respipe ();	868	create_respipe ();
765		869
766	if (eio_init (want_poll, done_poll) < 0)	870	if (eio_init (want_poll, done_poll) < 0)
767	croak ("IO::AIO: unable to initialise eio library");	871	croak ("IO::AIO: unable to initialise eio library");
768	}	872	}
769
770	/*****************************************************************************/
771
772	#if !_POSIX_MAPPED_FILES
773	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
774	# define munmap(addr,length) (errno = ENOSYS, -1)
775	#endif
776
777	#if !_POSIX_MEMORY_PROTECTION
778	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
779	# define PROT_NONE 0
780	# define PROT_WRITE 0
781	# define MAP_PRIVATE 0
782	# define MAP_SHARED 0
783	# define MAP_FIXED 0
784	#endif
785
786	#define MMAP_MAGIC PERL_MAGIC_ext
787
788	static int ecb_cold
789	mmap_free (pTHX_ SV *sv, MAGIC *mg)
790	{
791	int old_errno = errno;
792	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
793	errno = old_errno;
794
795	mg->mg_obj = 0; /* just in case */
796
797	SvREADONLY_off (sv);
798
799	if (SvPVX (sv) != mg->mg_ptr)
800	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
801
802	SvCUR_set (sv, 0);
803	SvPVX (sv) = 0;
804	SvOK_off (sv);
805
806	return 0;
807	}
808
809	static MGVTBL mmap_vtbl = {
810	0, 0, 0, 0, mmap_free
811	};
812		873
813	/*****************************************************************************/	874	/*****************************************************************************/
814		875
815	static SV *	876	static SV *
816	get_cb (SV *cb_sv)	877	get_cb (SV *cb_sv)
…		…
927	IV iv;	988	IV iv;
928	} *civ, const_iv[] = {	989	} *civ, const_iv[] = {
929	# define const_niv(name, value) { # name, (IV) value },	990	# define const_niv(name, value) { # name, (IV) value },
930	# define const_iv(name) { # name, (IV) name },	991	# define const_iv(name) { # name, (IV) name },
931	# define const_eio(name) { # name, (IV) EIO_ ## name },	992	# define const_eio(name) { # name, (IV) EIO_ ## name },
		993
		994	/* you have to re-run ./gendef0 after adding/removing any constants here */
		995	/* the first block can be undef if missing */
		996	const_iv (ENOSYS)
932	const_iv (EXDEV)	997	const_iv (EXDEV)
933	const_iv (ENOSYS)	998	const_iv (EBADR)
		999
		1000	/* for lseek */
		1001	const_iv (SEEK_DATA)
		1002	const_iv (SEEK_HOLE)
		1003
		1004	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1005	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1006	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1007	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1008	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1009	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1010
		1011	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1012	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1013	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1014	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1015	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1016
		1017	/* the second block will be 0 when missing */
934	const_iv (O_RDONLY)	1018	const_iv (O_RDONLY)
935	const_iv (O_WRONLY)	1019	const_iv (O_WRONLY)
936	const_iv (O_RDWR)	1020	const_iv (O_RDWR)
937	const_iv (O_CREAT)	1021	const_iv (O_CREAT)
938	const_iv (O_TRUNC)	1022	const_iv (O_TRUNC)
…		…
951	const_iv (O_SEARCH)	1035	const_iv (O_SEARCH)
952	const_iv (O_DIRECTORY)	1036	const_iv (O_DIRECTORY)
953	const_iv (O_DSYNC)	1037	const_iv (O_DSYNC)
954	const_iv (O_RSYNC)	1038	const_iv (O_RSYNC)
955	const_iv (O_SYNC)	1039	const_iv (O_SYNC)
		1040	const_iv (O_PATH)
		1041	const_iv (O_TMPFILE)
956	const_iv (O_TTY_INIT)	1042	const_iv (O_TTY_INIT)
957		1043
958	const_iv (S_IFIFO)	1044	const_iv (S_IFIFO)
959	const_iv (S_IFCHR)	1045	const_iv (S_IFCHR)
960	const_iv (S_IFBLK)	1046	const_iv (S_IFBLK)
…		…
962	const_iv (S_IFREG)	1048	const_iv (S_IFREG)
963	const_iv (S_IFDIR)	1049	const_iv (S_IFDIR)
964	const_iv (S_IFWHT)	1050	const_iv (S_IFWHT)
965	const_iv (S_IFSOCK)	1051	const_iv (S_IFSOCK)
966	const_iv (S_IFMT)	1052	const_iv (S_IFMT)
967
968	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
969	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
970	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
971	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
972	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
973	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
974
975	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
976	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
977	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
978	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
979	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
980		1053
981	const_iv (ST_RDONLY)	1054	const_iv (ST_RDONLY)
982	const_iv (ST_NOSUID)	1055	const_iv (ST_NOSUID)
983	const_iv (ST_NODEV)	1056	const_iv (ST_NODEV)
984	const_iv (ST_NOEXEC)	1057	const_iv (ST_NOEXEC)
…		…
994	const_iv (PROT_NONE)	1067	const_iv (PROT_NONE)
995	const_iv (PROT_EXEC)	1068	const_iv (PROT_EXEC)
996	const_iv (PROT_READ)	1069	const_iv (PROT_READ)
997	const_iv (PROT_WRITE)	1070	const_iv (PROT_WRITE)
998		1071
999	/*const_iv (MAP_FIXED)*/
1000	const_iv (MAP_PRIVATE)	1072	const_iv (MAP_PRIVATE)
1001	const_iv (MAP_SHARED)	1073	const_iv (MAP_SHARED)
		1074	const_iv (MAP_FIXED)
1002	const_iv (MAP_ANONYMOUS)	1075	const_iv (MAP_ANONYMOUS)
1003		1076
1004	/* linuxish */	1077	/* linuxish */
1005	const_iv (MAP_HUGETLB)
1006	const_iv (MAP_LOCKED)	1078	const_iv (MAP_LOCKED)
1007	const_iv (MAP_NORESERVE)	1079	const_iv (MAP_NORESERVE)
1008	const_iv (MAP_POPULATE)	1080	const_iv (MAP_POPULATE)
1009	const_iv (MAP_NONBLOCK)	1081	const_iv (MAP_NONBLOCK)
		1082	const_iv (MAP_GROWSDOWN)
		1083	const_iv (MAP_32BIT)
		1084	const_iv (MAP_HUGETLB)
		1085	const_iv (MAP_STACK)
1010		1086
		1087	const_iv (F_DUPFD_CLOEXEC)
		1088
		1089	const_iv (F_OFD_GETLK)
		1090	const_iv (F_OFD_SETLK)
		1091	const_iv (F_OFD_GETLKW)
		1092
		1093	const_iv (FIFREEZE)
		1094	const_iv (FITHAW)
		1095	const_iv (FITRIM)
		1096	const_iv (FICLONE)
		1097	const_iv (FICLONERANGE)
		1098	const_iv (FIDEDUPERANGE)
		1099
		1100	const_iv (FS_IOC_GETFLAGS)
		1101	const_iv (FS_IOC_SETFLAGS)
		1102	const_iv (FS_IOC_GETVERSION)
		1103	const_iv (FS_IOC_SETVERSION)
		1104	const_iv (FS_IOC_FIEMAP)
		1105	const_iv (FS_IOC_FSGETXATTR)
		1106	const_iv (FS_IOC_FSSETXATTR)
		1107	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1108	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1109	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1110
		1111	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1112
		1113	const_iv (FS_SECRM_FL)
		1114	const_iv (FS_UNRM_FL)
		1115	const_iv (FS_COMPR_FL)
		1116	const_iv (FS_SYNC_FL)
		1117	const_iv (FS_IMMUTABLE_FL)
		1118	const_iv (FS_APPEND_FL)
		1119	const_iv (FS_NODUMP_FL)
		1120	const_iv (FS_NOATIME_FL)
		1121	const_iv (FS_DIRTY_FL)
		1122	const_iv (FS_COMPRBLK_FL)
		1123	const_iv (FS_NOCOMP_FL)
		1124	const_iv (FS_ENCRYPT_FL)
		1125	const_iv (FS_BTREE_FL)
		1126	const_iv (FS_INDEX_FL)
		1127	const_iv (FS_JOURNAL_DATA_FL)
		1128	const_iv (FS_NOTAIL_FL)
		1129	const_iv (FS_DIRSYNC_FL)
		1130	const_iv (FS_TOPDIR_FL)
		1131	const_iv (FS_FL_USER_MODIFIABLE)
		1132
		1133	const_iv (FS_XFLAG_REALTIME)
		1134	const_iv (FS_XFLAG_PREALLOC)
		1135	const_iv (FS_XFLAG_IMMUTABLE)
		1136	const_iv (FS_XFLAG_APPEND)
		1137	const_iv (FS_XFLAG_SYNC)
		1138	const_iv (FS_XFLAG_NOATIME)
		1139	const_iv (FS_XFLAG_NODUMP)
		1140	const_iv (FS_XFLAG_RTINHERIT)
		1141	const_iv (FS_XFLAG_PROJINHERIT)
		1142	const_iv (FS_XFLAG_NOSYMLINKS)
		1143	const_iv (FS_XFLAG_EXTSIZE)
		1144	const_iv (FS_XFLAG_EXTSZINHERIT)
		1145	const_iv (FS_XFLAG_NODEFRAG)
		1146	const_iv (FS_XFLAG_FILESTREAM)
		1147	const_iv (FS_XFLAG_DAX)
		1148	const_iv (FS_XFLAG_HASATTR)
		1149
		1150	const_iv (FIEMAP_FLAG_SYNC)
		1151	const_iv (FIEMAP_FLAG_XATTR)
		1152	const_iv (FIEMAP_FLAGS_COMPAT)
		1153	const_iv (FIEMAP_EXTENT_LAST)
		1154	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1155	const_iv (FIEMAP_EXTENT_DELALLOC)
		1156	const_iv (FIEMAP_EXTENT_ENCODED)
		1157	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1158	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1159	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1160	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1161	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1162	const_iv (FIEMAP_EXTENT_MERGED)
		1163	const_iv (FIEMAP_EXTENT_SHARED)
		1164
		1165	const_iv (SPLICE_F_MOVE)
		1166	const_iv (SPLICE_F_NONBLOCK)
		1167	const_iv (SPLICE_F_MORE)
		1168	const_iv (SPLICE_F_GIFT)
		1169
		1170	const_iv (EFD_CLOEXEC)
		1171	const_iv (EFD_NONBLOCK)
		1172	const_iv (EFD_SEMAPHORE)
		1173
		1174	/* these are libeio constants, and are independent of gendef0 */
1011	const_eio (SEEK_SET)	1175	const_eio (SEEK_SET)
1012	const_eio (SEEK_CUR)	1176	const_eio (SEEK_CUR)
1013	const_eio (SEEK_END)	1177	const_eio (SEEK_END)
1014		1178
1015	const_eio (MCL_FUTURE)	1179	const_eio (MCL_FUTURE)
…		…
1024	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1188	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1025	const_eio (SYNC_FILE_RANGE_WRITE)	1189	const_eio (SYNC_FILE_RANGE_WRITE)
1026	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1190	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1027		1191
1028	const_eio (FALLOC_FL_KEEP_SIZE)	1192	const_eio (FALLOC_FL_KEEP_SIZE)
		1193	const_eio (FALLOC_FL_PUNCH_HOLE)
		1194	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1195	const_eio (FALLOC_FL_ZERO_RANGE)
		1196	const_eio (FALLOC_FL_INSERT_RANGE)
		1197	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1198
		1199	const_eio (RENAME_NOREPLACE)
		1200	const_eio (RENAME_EXCHANGE)
		1201	const_eio (RENAME_WHITEOUT)
1029		1202
1030	const_eio (READDIR_DENTS)	1203	const_eio (READDIR_DENTS)
1031	const_eio (READDIR_DIRS_FIRST)	1204	const_eio (READDIR_DIRS_FIRST)
1032	const_eio (READDIR_STAT_ORDER)	1205	const_eio (READDIR_STAT_ORDER)
1033	const_eio (READDIR_FOUND_UNKNOWN)	1206	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1101	PROTOTYPE: $	1274	PROTOTYPE: $
1102	CODE:	1275	CODE:
1103	max_outstanding = maxreqs;	1276	max_outstanding = maxreqs;
1104		1277
1105	void	1278	void
1106	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1279	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1107	PPCODE:	1280	PPCODE:
1108	{	1281	{
1109	dREQ;	1282	dREQ;
1110		1283
1111	req->type = EIO_WD_OPEN;	1284	req->type = EIO_WD_OPEN;
…		…
1113		1286
1114	REQ_SEND;	1287	REQ_SEND;
1115	}	1288	}
1116		1289
1117	void	1290	void
1118	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1291	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1119	PPCODE:	1292	PPCODE:
1120	{	1293	{
1121	dREQ;	1294	dREQ;
1122		1295
1123	req->type = EIO_OPEN;	1296	req->type = EIO_OPEN;
…		…
1127		1300
1128	REQ_SEND;	1301	REQ_SEND;
1129	}	1302	}
1130		1303
1131	void	1304	void
1132	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1305	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1133	ALIAS:	1306	ALIAS:
1134	aio_fsync = EIO_FSYNC	1307	aio_fsync = EIO_FSYNC
1135	aio_fdatasync = EIO_FDATASYNC	1308	aio_fdatasync = EIO_FDATASYNC
1136	aio_syncfs = EIO_SYNCFS	1309	aio_syncfs = EIO_SYNCFS
1137	PPCODE:	1310	PPCODE:
1138	{	1311	{
1139	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
1140	dREQ;	1313	dREQ;
1141		1314
1142	req->type = ix;	1315	req->type = ix;
1143	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
1144	req->int1 = fd;	1317	req->int1 = fd;
1145		1318
1146	REQ_SEND;	1319	REQ_SEND;
1147	}	1320	}
1148		1321
1149	void	1322	void
1150	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1323	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1151	PPCODE:	1324	PPCODE:
1152	{	1325	{
1153	int fd = s_fileno_croak (fh, 0);	1326	int fd = s_fileno_croak (fh, 0);
1154	dREQ;	1327	dREQ;
1155		1328
1156	req->type = EIO_SYNC_FILE_RANGE;	1329	req->type = EIO_SYNC_FILE_RANGE;
1157	req->sv1 = newSVsv (fh);	1330	req->sv1 = newSVsv (fh);
1158	req->int1 = fd;	1331	req->int1 = fd;
…		…
1162		1335
1163	REQ_SEND;	1336	REQ_SEND;
1164	}	1337	}
1165		1338
1166	void	1339	void
1167	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1340	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1168	PPCODE:	1341	PPCODE:
1169	{	1342	{
1170	int fd = s_fileno_croak (fh, 0);	1343	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1344	dREQ;
1172		1345
1173	req->type = EIO_FALLOCATE;	1346	req->type = EIO_FALLOCATE;
1174	req->sv1 = newSVsv (fh);	1347	req->sv1 = newSVsv (fh);
1175	req->int1 = fd;	1348	req->int1 = fd;
…		…
1179		1352
1180	REQ_SEND;	1353	REQ_SEND;
1181	}	1354	}
1182		1355
1183	void	1356	void
1184	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1357	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1185	PPCODE:	1358	PPCODE:
1186	{	1359	{
1187	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1360	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1188	int fd = s_fileno_croak (fh, 0);	1361	int fd = s_fileno_croak (fh, 0);
1189	dREQ;	1362	dREQ;
1190		1363
1191	if (expect_false (close_fd < 0))	1364	if (expect_false (close_fd < 0))
1192	{	1365	{
1193	int pipefd [2];	1366	int pipefd [2];
…		…
1213		1386
1214	REQ_SEND;	1387	REQ_SEND;
1215	}	1388	}
1216		1389
1217	void	1390	void
1218	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1391	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1219	PPCODE:	1392	PPCODE:
1220	{	1393	{
1221	STRLEN svlen;
1222	int fd = s_fileno_croak (fh, 0);	1394	int fd = s_fileno_croak (fh, 0);
1223	dREQ;	1395	dREQ;
1224		1396
1225	req->type = EIO_SEEK;	1397	req->type = EIO_SEEK;
1226	req->sv1 = newSVsv (fh);	1398	req->sv1 = newSVsv (fh);
…		…
1230		1402
1231	REQ_SEND;	1403	REQ_SEND;
1232	}	1404	}
1233		1405
1234	void	1406	void
1235	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1407	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1236	ALIAS:	1408	ALIAS:
1237	aio_read = EIO_READ	1409	aio_read = EIO_READ
1238	aio_write = EIO_WRITE	1410	aio_write = EIO_WRITE
1239	PPCODE:	1411	PPCODE:
1240	{	1412	{
…		…
1256	len = svlen - dataoffset;	1428	len = svlen - dataoffset;
1257	}	1429	}
1258	else	1430	else
1259	{	1431	{
1260	/* read: check type and grow scalar as necessary */	1432	/* read: check type and grow scalar as necessary */
1261	SvUPGRADE (data, SVt_PV);	1433	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1262	svptr = SvGROW (data, len + dataoffset + 1);	1434	svptr = sv_grow (data, len + dataoffset + 1);
		1435	else if (SvCUR (data) < len + dataoffset)
		1436	croak ("length + dataoffset outside of scalar, and cannot grow");
1263	}	1437	}
1264		1438
1265	{	1439	{
1266	dREQ;	1440	dREQ;
1267		1441
…		…
1283	REQ_SEND;	1457	REQ_SEND;
1284	}	1458	}
1285	}	1459	}
1286		1460
1287	void	1461	void
		1462	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1463	ALIAS:
		1464	aio_ioctl = EIO_IOCTL
		1465	aio_fcntl = EIO_FCNTL
		1466	PPCODE:
		1467	{
		1468	int fd = s_fileno_croak (fh, 0);
		1469	char *svptr;
		1470
		1471	if (SvPOK (arg) || !SvNIOK (arg))
		1472	{
		1473	STRLEN svlen;
		1474	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1475	#ifdef IOCPARM_LEN
		1476	STRLEN need = IOCPARM_LEN (request);
		1477	#else
		1478	STRLEN need = 256;
		1479	#endif
		1480
		1481	if (svlen < need)
		1482	svptr = SvGROW (arg, need);
		1483	}
		1484	else
		1485	svptr = (char *)SvIV (arg);
		1486
		1487	{
		1488	dREQ;
		1489
		1490	req->type = ix;
		1491	req->sv1 = newSVsv (fh);
		1492	req->int1 = fd;
		1493	req->int2 = (long)request;
		1494	req->sv2 = SvREFCNT_inc (arg);
		1495	req->ptr2 = svptr;
		1496
		1497	REQ_SEND;
		1498	}
		1499	}
		1500
		1501	void
1288	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1502	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1289	ALIAS:	1503	ALIAS:
1290	aio_readlink = EIO_READLINK	1504	aio_readlink = EIO_READLINK
1291	aio_realpath = EIO_REALPATH	1505	aio_realpath = EIO_REALPATH
1292	PPCODE:	1506	PPCODE:
1293	{	1507	{
…		…
1298		1512
1299	REQ_SEND;	1513	REQ_SEND;
1300	}	1514	}
1301		1515
1302	void	1516	void
1303	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1517	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1304	PPCODE:	1518	PPCODE:
1305	{	1519	{
1306	int ifd = s_fileno_croak (in_fh , 0);	1520	int ifd = s_fileno_croak (in_fh , 0);
1307	int ofd = s_fileno_croak (out_fh, 1);	1521	int ofd = s_fileno_croak (out_fh, 1);
1308	dREQ;	1522	dREQ;
1309		1523
1310	req->type = EIO_SENDFILE;	1524	req->type = EIO_SENDFILE;
1311	req->sv1 = newSVsv (out_fh);	1525	req->sv1 = newSVsv (out_fh);
1312	req->int1 = ofd;	1526	req->int1 = ofd;
…		…
1317		1531
1318	REQ_SEND;	1532	REQ_SEND;
1319	}	1533	}
1320		1534
1321	void	1535	void
1322	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1536	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1323	PPCODE:	1537	PPCODE:
1324	{	1538	{
1325	int fd = s_fileno_croak (fh, 0);	1539	int fd = s_fileno_croak (fh, 0);
1326	dREQ;	1540	dREQ;
1327		1541
1328	req->type = EIO_READAHEAD;	1542	req->type = EIO_READAHEAD;
1329	req->sv1 = newSVsv (fh);	1543	req->sv1 = newSVsv (fh);
1330	req->int1 = fd;	1544	req->int1 = fd;
…		…
1333		1547
1334	REQ_SEND;	1548	REQ_SEND;
1335	}	1549	}
1336		1550
1337	void	1551	void
1338	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1552	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1339	ALIAS:	1553	ALIAS:
1340	aio_stat = EIO_STAT	1554	aio_stat = EIO_STAT
1341	aio_lstat = EIO_LSTAT	1555	aio_lstat = EIO_LSTAT
1342	aio_statvfs = EIO_STATVFS	1556	aio_statvfs = EIO_STATVFS
1343	PPCODE:	1557	PPCODE:
…		…
1352	UV	1566	UV
1353	major (UV dev)	1567	major (UV dev)
1354	ALIAS:	1568	ALIAS:
1355	minor = 1	1569	minor = 1
1356	CODE:	1570	CODE:
1357	RETVAL = ix ? major (dev) : minor (dev);	1571	RETVAL = ix ? minor (dev) : major (dev);
1358	OUTPUT:	1572	OUTPUT:
1359	RETVAL	1573	RETVAL
1360		1574
1361	UV	1575	UV
1362	makedev (UV maj, UV min)	1576	makedev (UV maj, UV min)
…		…
1364	RETVAL = makedev (maj, min);	1578	RETVAL = makedev (maj, min);
1365	OUTPUT:	1579	OUTPUT:
1366	RETVAL	1580	RETVAL
1367		1581
1368	void	1582	void
1369	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1583	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1370	PPCODE:	1584	PPCODE:
1371	{	1585	{
1372	dREQ;	1586	dREQ;
1373		1587
1374	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1588	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1377		1591
1378	REQ_SEND;	1592	REQ_SEND;
1379	}	1593	}
1380		1594
1381	void	1595	void
1382	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1596	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1383	PPCODE:	1597	PPCODE:
1384	{	1598	{
1385	dREQ;	1599	dREQ;
1386		1600
1387	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1601	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1389		1603
1390	REQ_SEND;	1604	REQ_SEND;
1391	}	1605	}
1392		1606
1393	void	1607	void
1394	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1608	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1395	PPCODE:	1609	PPCODE:
1396	{	1610	{
1397	dREQ;	1611	dREQ;
1398		1612
1399	req->int2 = mode;	1613	req->int2 = mode;
…		…
1401		1615
1402	REQ_SEND;	1616	REQ_SEND;
1403	}	1617	}
1404		1618
1405	void	1619	void
1406	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1620	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1407	PPCODE:	1621	PPCODE:
1408	{	1622	{
1409	dREQ;	1623	dREQ;
1410		1624
1411	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1625	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1414		1628
1415	REQ_SEND;	1629	REQ_SEND;
1416	}	1630	}
1417		1631
1418	void	1632	void
1419	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1633	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1420	PPCODE:	1634	PPCODE:
1421	{	1635	{
1422	dREQ;	1636	dREQ;
1423		1637
1424	req->type = EIO_READDIR;	1638	req->type = EIO_READDIR;
…		…
1431		1645
1432	REQ_SEND;	1646	REQ_SEND;
1433	}	1647	}
1434		1648
1435	void	1649	void
1436	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1650	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1437	PPCODE:	1651	PPCODE:
1438	{	1652	{
1439	dREQ;	1653	dREQ;
1440		1654
1441	req->type = EIO_MKDIR;	1655	req->type = EIO_MKDIR;
…		…
1444		1658
1445	REQ_SEND;	1659	REQ_SEND;
1446	}	1660	}
1447		1661
1448	void	1662	void
1449	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1663	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1450	ALIAS:	1664	ALIAS:
1451	aio_unlink = EIO_UNLINK	1665	aio_unlink = EIO_UNLINK
1452	aio_rmdir = EIO_RMDIR	1666	aio_rmdir = EIO_RMDIR
1453	aio_readdir = EIO_READDIR	1667	aio_readdir = EIO_READDIR
1454	PPCODE:	1668	PPCODE:
…		…
1460		1674
1461	REQ_SEND;	1675	REQ_SEND;
1462	}	1676	}
1463		1677
1464	void	1678	void
1465	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1679	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1466	ALIAS:	1680	ALIAS:
1467	aio_link = EIO_LINK	1681	aio_link = EIO_LINK
1468	aio_symlink = EIO_SYMLINK	1682	aio_symlink = EIO_SYMLINK
1469	aio_rename = EIO_RENAME	1683	aio_rename = EIO_RENAME
1470	PPCODE:	1684	PPCODE:
…		…
1479		1693
1480	REQ_SEND;	1694	REQ_SEND;
1481	}	1695	}
1482		1696
1483	void	1697	void
		1698	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1699	PPCODE:
		1700	{
		1701	eio_wd wd2 = 0;
		1702	dREQ;
		1703
		1704	req->type = EIO_RENAME;
		1705	req_set_path1 (req, oldpath);
		1706	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1707	req->int2 = flags;
		1708	req->int3 = (long)wd2;
		1709
		1710	REQ_SEND;
		1711	}
		1712
		1713	void
1484	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1714	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1485	PPCODE:	1715	PPCODE:
1486	{	1716	{
1487	dREQ;	1717	dREQ;
1488		1718
1489	req->type = EIO_MKNOD;	1719	req->type = EIO_MKNOD;
…		…
1493		1723
1494	REQ_SEND;	1724	REQ_SEND;
1495	}	1725	}
1496		1726
1497	void	1727	void
1498	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1728	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1499	ALIAS:	1729	ALIAS:
1500	aio_mtouch = EIO_MTOUCH	1730	aio_mtouch = EIO_MTOUCH
1501	aio_msync = EIO_MSYNC	1731	aio_msync = EIO_MSYNC
1502	PPCODE:	1732	PPCODE:
1503	{	1733	{
1504	STRLEN svlen;	1734	STRLEN svlen;
1505	char *svptr = SvPVbyte (data, svlen);	1735	char *svptr = SvPVbyte (data, svlen);
1506	UV len = SvUV (length);	1736	UV len = SvUV (length);
		1737
		1738	if (flags < 0)
		1739	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1507		1740
1508	if (offset < 0)	1741	if (offset < 0)
1509	offset += svlen;	1742	offset += svlen;
1510		1743
1511	if (offset < 0 || offset > svlen)	1744	if (offset < 0 || offset > svlen)
…		…
1526	REQ_SEND;	1759	REQ_SEND;
1527	}	1760	}
1528	}	1761	}
1529		1762
1530	void	1763	void
1531	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1764	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1532	PPCODE:	1765	PPCODE:
1533	{	1766	{
1534	STRLEN svlen;	1767	STRLEN svlen;
1535	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1536	UV len = SvUV (length);	1769	UV len = SvUV (length);
…		…
1555	REQ_SEND;	1788	REQ_SEND;
1556	}	1789	}
1557	}	1790	}
1558		1791
1559	void	1792	void
1560	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1793	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1561	PPCODE:	1794	PPCODE:
1562	{	1795	{
1563	dREQ;	1796	dREQ;
1564		1797
1565	req->type = EIO_MLOCKALL;	1798	req->type = EIO_MLOCKALL;
…		…
1567		1800
1568	REQ_SEND;	1801	REQ_SEND;
1569	}	1802	}
1570		1803
1571	void	1804	void
		1805	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1806	PPCODE:
		1807	{
		1808	int fd = s_fileno_croak (fh, 0);
		1809	dREQ;
		1810
		1811	req->type = EIO_CUSTOM;
		1812	req->sv1 = newSVsv (fh);
		1813	req->int1 = fd;
		1814
		1815	req->feed = fiemap;
		1816	#if HAVE_FIEMAP
		1817	/* keep our fingers crossed that the next two types are 64 bit */
		1818	req->offs = start;
		1819	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1820	req->int2 = flags;
		1821	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1822	#endif
		1823
		1824	REQ_SEND;
		1825	}
		1826
		1827	void
		1828	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1829	PPCODE:
		1830	{
		1831	char *svptr = 0;
		1832
		1833	sv_clear_foreign (data);
		1834
		1835	if (length) /* known length, directly read into scalar */
		1836	{
		1837	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1838	svptr = sv_grow (data, length + 1);
		1839	else if (SvCUR (data) < length)
		1840	croak ("length outside of scalar, and cannot grow");
		1841	else
		1842	svptr = SvPVbyte_nolen (data);
		1843	}
		1844
		1845	{
		1846	dREQ;
		1847
		1848	req->type = EIO_SLURP;
		1849	req_set_path1 (req, pathname);
		1850	req->offs = offset;
		1851	req->size = length;
		1852	req->sv2 = SvREFCNT_inc (data);
		1853	req->ptr2 = svptr;
		1854
		1855	if (!SvREADONLY (data))
		1856	{
		1857	SvREADONLY_on (data);
		1858	req->flags |= FLAG_SV2_RO_OFF;
		1859	}
		1860
		1861	REQ_SEND;
		1862	}
		1863	}
		1864
		1865	void
1572	aio_busy (double delay, SV *callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback = &PL_sv_undef)
1573	PPCODE:	1867	PPCODE:
1574	{	1868	{
1575	dREQ;	1869	dREQ;
1576		1870
1577	req->type = EIO_BUSY;	1871	req->type = EIO_BUSY;
…		…
1579		1873
1580	REQ_SEND;	1874	REQ_SEND;
1581	}	1875	}
1582		1876
1583	void	1877	void
1584	aio_group (SV *callback=&PL_sv_undef)	1878	aio_group (SV *callback = &PL_sv_undef)
1585	PPCODE:	1879	PPCODE:
1586	{	1880	{
1587	dREQ;	1881	dREQ;
1588		1882
1589	req->type = EIO_GROUP;	1883	req->type = EIO_GROUP;
1590		1884
		1885	PUTBACK;
1591	req_submit (req);	1886	req_submit (req);
		1887	SPAGAIN;
		1888
1592	XPUSHs (req_sv (req, aio_grp_stash));	1889	XPUSHs (req_sv (req, aio_grp_stash));
1593	}	1890	}
1594		1891
1595	void	1892	void
1596	aio_nop (SV *callback=&PL_sv_undef)	1893	aio_nop (SV *callback = &PL_sv_undef)
1597	ALIAS:	1894	ALIAS:
1598	aio_nop = EIO_NOP	1895	aio_nop = EIO_NOP
1599	aio_sync = EIO_SYNC	1896	aio_sync = EIO_SYNC
1600	PPCODE:	1897	PPCODE:
1601	{	1898	{
…		…
1605		1902
1606	REQ_SEND;	1903	REQ_SEND;
1607	}	1904	}
1608		1905
1609	int	1906	int
1610	aioreq_pri (int pri = 0)	1907	aioreq_pri (int pri = NO_INIT)
1611	CODE:	1908	CODE:
1612	RETVAL = next_pri;	1909	RETVAL = next_pri;
1613	if (items > 0)	1910	if (items > 0)
1614	{	1911	{
1615	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1912	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1705	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2002	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1706	OUTPUT:	2003	OUTPUT:
1707	RETVAL	2004	RETVAL
1708		2005
1709	void	2006	void
1710	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2007	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1711	PPCODE:	2008	PPCODE:
1712	sv_unmagic (scalar, MMAP_MAGIC);	2009	sv_clear_foreign (scalar);
1713	{	2010	{
1714	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2011	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1715	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2012	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1716	if (addr == (void *)-1)	2013	if (addr == (void *)-1)
1717	XSRETURN_NO;	2014	XSRETURN_NO;
1718		2015
1719	sv_force_normal (scalar);	2016	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1720
1721	/* we store the length in mg_obj, as namlen is I32 :/ */
1722	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1723	->mg_obj = (SV *)length;
1724
1725	SvUPGRADE (scalar, SVt_PV); /* nop... */
1726		2017
1727	if (!(prot & PROT_WRITE))	2018	if (!(prot & PROT_WRITE))
1728	SvREADONLY_on (scalar);	2019	SvREADONLY_on (scalar);
1729		2020
1730	if (SvLEN (scalar))
1731	Safefree (SvPVX (scalar));
1732
1733	SvPVX (scalar) = (char *)addr;
1734	SvCUR_set (scalar, length);
1735	SvLEN_set (scalar, 0);
1736	SvPOK_only (scalar);
1737
1738	XSRETURN_YES;	2021	XSRETURN_YES;
1739	}	2022	}
1740		2023
1741	void	2024	void
1742	munmap (SV *scalar)	2025	munmap (SV *scalar)
1743	CODE:	2026	CODE:
1744	sv_unmagic (scalar, MMAP_MAGIC);	2027	sv_clear_foreign (scalar);
1745		2028
1746	int	2029	int
1747	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2030	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1748	ALIAS:	2031	ALIAS:
1749	mprotect = 1	2032	mprotect = 1
1750	CODE:	2033	CODE:
1751	{	2034	{
1752	STRLEN svlen;	2035	STRLEN svlen;
1753	void *addr = SvPVbyte (scalar, svlen);	2036	void *addr = SvPVbyte (scalar, svlen);
1754	size_t len = SvUV (length);	2037	STRLEN len = SvUV (length);
1755		2038
1756	if (offset < 0)	2039	if (offset < 0)
1757	offset += svlen;	2040	offset += svlen;
1758		2041
1759	if (offset < 0 || offset > svlen)	2042	if (offset < 0 || offset > svlen)
…		…
1773	}	2056	}
1774	OUTPUT:	2057	OUTPUT:
1775	RETVAL	2058	RETVAL
1776		2059
1777	int	2060	int
1778	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2061	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1779	CODE:	2062	CODE:
1780	{	2063	{
1781	STRLEN svlen;	2064	STRLEN svlen;
1782	void *addr = SvPVbyte (scalar, svlen);	2065	void *addr = SvPVbyte (scalar, svlen);
1783	size_t len = SvUV (length);	2066	size_t len = SvUV (length);
1784		2067
1785	if (offset < 0)	2068	if (offset < 0)
1786	offset += svlen;	2069	offset += svlen;
1787		2070
…		…
1794	addr = (void *)(((intptr_t)addr) + offset);	2077	addr = (void *)(((intptr_t)addr) + offset);
1795	eio_page_align (&addr, &len);	2078	eio_page_align (&addr, &len);
1796	#if _POSIX_MEMLOCK_RANGE	2079	#if _POSIX_MEMLOCK_RANGE
1797	RETVAL = munlock (addr, len);	2080	RETVAL = munlock (addr, len);
1798	#else	2081	#else
1799	RETVAL = ((errno = ENOSYS), -1);	2082	RETVAL = EIO_ENOSYS ();
1800	#endif	2083	#endif
1801	}	2084	}
1802	OUTPUT:	2085	OUTPUT:
1803	RETVAL	2086	RETVAL
1804		2087
…		…
1806	munlockall ()	2089	munlockall ()
1807	CODE:	2090	CODE:
1808	#if _POSIX_MEMLOCK	2091	#if _POSIX_MEMLOCK
1809	munlockall ();	2092	munlockall ();
1810	#else	2093	#else
1811	RETVAL = -1;	2094	RETVAL = EIO_ENOSYS ();
1812	errno = ENOSYS;
1813	#endif	2095	#endif
1814	OUTPUT:	2096	OUTPUT:
1815	RETVAL	2097	RETVAL
		2098
		2099	int
		2100	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2101	CODE:
		2102	{
		2103	#if HAVE_LINUX_SPLICE
		2104	loff_t off_in_, off_out_;
		2105	RETVAL = splice (
		2106	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2107	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2108	length, flags
		2109	);
		2110	#else
		2111	RETVAL = EIO_ENOSYS ();
		2112	#endif
		2113	}
		2114	OUTPUT:
		2115	RETVAL
		2116
		2117	int
		2118	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2119	CODE:
		2120	#if HAVE_LINUX_SPLICE
		2121	RETVAL = tee (rfh, wfh, length, flags);
		2122	#else
		2123	RETVAL = EIO_ENOSYS ();
		2124	#endif
		2125	OUTPUT:
		2126	RETVAL
		2127
		2128	int
		2129	pipesize (aio_rfd rfh, int new_size = -1)
		2130	PROTOTYPE: $;$
		2131	CODE:
		2132	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2133	if (new_size >= 0)
		2134	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2135	else
		2136	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2137	#else
		2138	errno = ENOSYS;
		2139	RETVAL = -1;
		2140	#endif
		2141	OUTPUT:
		2142	RETVAL
		2143
		2144	void
		2145	pipe2 (int flags = 0)
		2146	PROTOTYPE: ;$
		2147	PPCODE:
		2148	{
		2149	int fd[2];
		2150	int res;
		2151
		2152	if (flags)
		2153	#if HAVE_PIPE2
		2154	res = pipe2 (fd, flags);
		2155	#else
		2156	res = (errno = ENOSYS, -1);
		2157	#endif
		2158	else
		2159	res = pipe (fd);
		2160
		2161	if (!res)
		2162	{
		2163	EXTEND (SP, 2);
		2164	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2165	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2166	}
		2167	}
		2168
		2169	void
		2170	eventfd (unsigned int initval = 0, int flags = 0)
		2171	PPCODE:
		2172	{
		2173	int fd;
		2174	#if HAVE_EVENTFD
		2175	fd = eventfd (initval, flags);
		2176	#else
		2177	fd = (errno = ENOSYS, -1);
		2178	#endif
		2179
		2180	XPUSHs (newmortalFH (fd, O_RDWR));
		2181	}
		2182
		2183	UV
		2184	get_fdlimit ()
		2185	CODE:
		2186	#if HAVE_RLIMITS
		2187	struct rlimit rl;
		2188	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2189	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2190	#endif
		2191	XSRETURN_UNDEF;
		2192	OUTPUT:
		2193	RETVAL
		2194
		2195	void
		2196	min_fdlimit (UV limit = 0x7fffffffU)
		2197	CODE:
		2198	{
		2199	#if HAVE_RLIMITS
		2200	struct rlimit rl;
		2201	rlim_t orig_rlim_max;
		2202	UV bit;
		2203
		2204	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2205	goto fail;
		2206
		2207	if (rl.rlim_cur == RLIM_INFINITY)
		2208	XSRETURN_YES;
		2209
		2210	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2211
		2212	if (rl.rlim_cur < limit)
		2213	{
		2214	rl.rlim_cur = limit;
		2215
		2216	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2217	rl.rlim_max = rl.rlim_cur;
		2218	}
		2219
		2220	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2221	XSRETURN_YES;
		2222
		2223	if (errno == EPERM)
		2224	{
		2225	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2226	/* our limit overflows a system-wide limit */
		2227	/* try an adaptive algorithm, but do not lower the hardlimit */
		2228	rl.rlim_max = 0;
		2229	for (bit = 0x40000000U; bit; bit >>= 1)
		2230	{
		2231	rl.rlim_max |= bit;
		2232	rl.rlim_cur = rl.rlim_max;
		2233
		2234	/* nevr decrease the hard limit */
		2235	if (rl.rlim_max < orig_rlim_max)
		2236	break;
		2237
		2238	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2239	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2240	}
		2241
		2242	/* now, raise the soft limit to the max permitted */
		2243	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2244	{
		2245	rl.rlim_cur = rl.rlim_max;
		2246	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2247	errno = EPERM;
		2248	}
		2249	}
		2250	#endif
		2251	fail:
		2252	XSRETURN_UNDEF;
		2253	}
1816		2254
1817	void _on_next_submit (SV *cb)	2255	void _on_next_submit (SV *cb)
1818	CODE:	2256	CODE:
1819	SvREFCNT_dec (on_next_submit);	2257	SvREFCNT_dec (on_next_submit);
1820	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2258	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1855	cancel (aio_req_ornot req)	2293	cancel (aio_req_ornot req)
1856	CODE:	2294	CODE:
1857	eio_cancel (req);	2295	eio_cancel (req);
1858		2296
1859	void	2297	void
1860	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2298	cb (aio_req_ornot req, SV *callback = NO_INIT)
1861	PPCODE:	2299	PPCODE:
1862	{	2300	{
1863	if (GIMME_V != G_VOID)	2301	if (GIMME_V != G_VOID)
1864	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2302	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1865		2303
1866	if (items > 1)	2304	if (items > 1)
1867	{	2305	{
1868	SV *cb_cv =get_cb (callback);	2306	SV *cb_cv = get_cb (callback);
1869		2307
1870	SvREFCNT_dec (req->callback);	2308	SvREFCNT_dec (req->callback);
1871	req->callback = SvREFCNT_inc (cb_cv);	2309	req->callback = SvREFCNT_inc (cb_cv);
1872	}	2310	}
1873	}	2311	}
…		…
1930	limit (aio_req grp, int limit)	2368	limit (aio_req grp, int limit)
1931	CODE:	2369	CODE:
1932	eio_grp_limit (grp, limit);	2370	eio_grp_limit (grp, limit);
1933		2371
1934	void	2372	void
1935	feed (aio_req grp, SV *callback=&PL_sv_undef)	2373	feed (aio_req grp, SV *callback = &PL_sv_undef)
1936	CODE:	2374	CODE:
1937	{	2375	{
1938	SvREFCNT_dec (grp->sv2);	2376	SvREFCNT_dec (grp->sv2);
1939	grp->sv2 = newSVsv (callback);	2377	grp->sv2 = newSVsv (callback);
1940	grp->feed = aio_grp_feed;	2378	grp->feed = aio_grp_feed;

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